Every thing worked fine before updating sdk and support libraries. After updating i just added the support library(mean imported the support library with resources). once i add it i get the following error
Error:
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:75: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:79: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton.CloseMode'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:83: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionButton.Overflow'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:25: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.ActionBar.TabView'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\styles_base.xml:29: error: Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Material.Light.ActionBar.TabView'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v17\styles_rtl.xml:20: error: Error: No resource found that matches the given name: attr 'android:layout_marginStart'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v17\styles_rtl.xml:25: error: Error: No resource found that matches the given name: attr 'android:paddingEnd'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v17\styles_rtl.xml:24: error: Error: No resource found that matches the given name: attr 'android:paddingStart'.
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\themes_base.xml:26: error: Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\themes_base.xml:31: error: Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material.Light'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\themes_base.xml:36: error: Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material.Dialog'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v21\themes_base.xml:41: error: Error retrieving parent for item: No resource found that matches the given name 'android:Theme.Material.Light.Dialog'.
[2014-11-12 13:28:16 - android-support-v7-appcompat]
[2014-11-12 13:28:16 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-v11\themes_base.xml:338: error: Error: No resource found that matches the given name: attr 'android:actionModeShareDrawable'.
After changing my Build Target to 21 from 17 i get these errors
[2014-11-12 13:33:15 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-large-v14\themes_base.xml:19: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.Base.AppCompat.DialogWhenLarge.Base'.
[2014-11-12 13:33:15 - android-support-v7-appcompat]
[2014-11-12 13:33:15 - android-support-v7-appcompat] E:\Android Projects\android-support-v7-appcompat\res\values-large-v14\themes_base.xml:22: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.Base.AppCompat.Light.DialogWhenLarge.Base'.
[2014-11-12 13:33:15 - android-support-v7-appcompat]
I tried a lot of things like importing the project again changing the project.properties file etc., I am not able to solve the issue
please help me out thanks in advance.